The Xperia ZL is the 'little' brother to Sony's recently-unveiled Xperia Z, and to get the most pressing question out of the way immediately: what's the difference between the two? Well, the ZL isn't waterproof (and thus has a different chassis and design), has a hardware camera button, and uses a minutely larger (by 40mAh) battery. That's really it. The display, the chipset, the camera, and the software are all near as makes no difference identical to those on the Z.